Wetting of grain boundaries in Al by the solid Al3Mg2 phase
2009; Springer Science+Business Media; Volume: 45; Issue: 8 Linguagem: Inglês
10.1007/s10853-009-4014-6
ISSN1573-4803
AutoresBoris B. Straumal, B. Baretzky, Olga A. Kogtenkova, A. B. Straumal, А. С. Сидоренко,
Tópico(s)Microstructure and mechanical properties
ResumoThe microstructure of binary Al100−x –Mg x (x = 10, 15, 18 and 25 wt%) alloys after long anneals (600–4000 h) was studied between 210 and 440 °C. The transition from incomplete to complete wetting of Al/Al grain boundaries (GBs) by the second solid phase Al3Mg2 has been observed. The portion of completely wetted GBs increases with increasing temperature beginning from T wsmin = 220 °C. Above T wsmax = 410 °C all Al/Al GBs are completely wetted by the Al3Mg2 phase.
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